Workpiece clamping device and workpiece clamping method

Abstract

This invention discloses a workpiece clamping device and a workpiece clamping method. The workpiece clamping device includes a base plate, an adjusting seat, a turntable, a first positioning mechanism, and a second positioning mechanism. One side of the adjusting seat is hinged to the base plate, and the second side of the adjusting seat is positioned by the first positioning mechanism. The turntable is movably mounted on the adjusting seat and can rotate relative to the adjusting seat. A second positioning mechanism is provided between the turntable and the adjusting seat. This invention can adapt to complex process requirements of workpieces and conveniently perform complex position adjustments and positioning on the workpiece to be processed.

Description

Technical Field

[0001] The invention belongs to the field of workpiece clamping, and in particular relates to a workpiece clamping device and a workpiece clamping method. Background Art

[0002] During machining, fixtures are basically used. Common fixtures include vises and chucks, which are used to clamp and position the workpiece.

[0003] However, the existing clamping method is single and cannot complete the clamping effect for some complex workpieces, cannot adapt to the complex process requirements during workpiece processing, and is not convenient for complex position adjustment and positioning of the workpiece to be processed. Summary of the invention

[0004] The object of the present invention is to provide a workpiece clamping device and a workpiece clamping method, which can adapt to the complex process requirements of the workpiece and conveniently perform complex position adjustment and positioning on the workpiece to be processed.

[0005] The technical solution is as follows:

[0006] The present invention provides a workpiece clamping device, comprising a base plate, an adjustment seat, a turntable, a first positioning mechanism, and a second positioning mechanism. One side of the adjustment seat is hinged to the base plate, the second side of the adjustment seat is positioned by the first positioning mechanism, the turntable is movably arranged on the adjustment seat and can rotate relative to the adjustment seat, and a second positioning mechanism is arranged between the turntable and the adjustment seat.

[0007] In one of the embodiments, a fixed base is further included, which is connected to the bottom plate. The adjustment seat and the fixed base are both provided with hinged parts, and the adjustment seat is movably hinged to the fixed base via the hinged parts.

[0008] In one embodiment, the fixed base includes a second base body, a connecting member and a locking member, the second base body is provided with a first mounting hole and a second mounting hole, the first mounting hole is provided at an end of the second base body, the second mounting hole is provided at a side of the second base body, and the first mounting hole and the second mounting hole are communicated with each other inside the second base body;

[0009] One end of the connecting member is installed in the first mounting hole, and the locking member is installed in the second mounting hole. The locking member cooperates with one end of the connecting member located in the first mounting hole.

[0010] In one embodiment, a first circumferential positioning portion is provided on the adjustment seat, and a second circumferential positioning portion is provided on the turntable. The first circumferential positioning portion corresponds to the second circumferential positioning portion, and the second positioning mechanism includes the first circumferential positioning portion and the second circumferential positioning portion.

[0011] In one embodiment, the first circumferential positioning portion is a positioning notch, which has a first positioning edge, a second positioning edge and a third positioning edge, the second positioning edge is located between the first positioning edge and the third positioning edge, and the first positioning edge is opposite to the third positioning edge; there are at least two first circumferential positioning portions, which are distributed around the periphery of the adjustment seat.

[0012] In one embodiment, a distance adjusting member is provided between the second circumferential positioning portion and the first positioning edge and between the second circumferential positioning portion and the third positioning edge, and the second positioning mechanism includes the distance adjusting member.

[0013] In one embodiment, the distance adjustment member includes an adjustment seat, a first movable block, a second movable block, and an adjusting bolt. The first movable block is installed on the adjustment seat, and a matching first guide rail and a first guide groove are provided between the first movable block and the adjustment seat; the adjusting bolt passes through the second movable block and the adjustment seat at the same time, and the distance between the second movable block and the adjustment seat is adjusted by the adjusting bolt; a matching bevel is provided on the first movable block, and a matching bevel is also provided on the second movable block, and the two matching bevels match each other.

[0014] In one of the embodiments, the bottom plate and the turntable are evenly provided with a plurality of fixing holes arranged in a horizontal and vertical array, and the fixing base is fixed to the fixing holes of the bottom plate.

[0015] In one of the embodiments, a hinged portion is provided on the first side of the base plate and the adjustment seat, and the base plate and the first side of the adjustment seat are movably hinged through the hinged portion. From the first side to the second side, a supporting portion and a lifting portion are provided on the base plate and the adjustment seat, a supporting member is provided between the supporting portion of the base plate and the adjustment seat, and a lifting member is provided between the lifting portion of the base plate and the adjustment seat, and the first positioning mechanism is the hinged portion, the supporting portion, the lifting portion, the supporting member, and the lifting member.

[0016] In one embodiment, a connecting seat is further included, and at least one of the hinged part, the supporting part or the lifting part is connected to the base plate through the connecting seat; and / or at least one of the hinged part, the supporting part or the lifting part is connected to the adjustment seat through the connecting seat.

[0017] The present invention also provides a workpiece clamping method, which comprises the following steps:

[0018] The adjusting seat is rotated relative to the bottom plate through the hinged portion between the adjusting seat and the bottom plate, so that the adjusting seat is tilted to a set angle relative to the bottom plate, and the angle of the adjusting seat relative to the bottom plate is positioned by the first positioning mechanism;

[0019] The turntable is rotated relative to the adjustment seat in the adjustment seat, and the angle of the turntable relative to the adjustment seat is positioned by a second positioning mechanism.

[0020] The technical solution provided by the present invention has the following advantages and effects:

[0021] The adjusting seat is rotated relative to the bottom plate through the hinged portion between the adjusting seat and the bottom plate, so that the adjusting seat is tilted to a set angle relative to the bottom plate, and the angle of the adjusting seat relative to the bottom plate is positioned by the first positioning mechanism;

[0022] The turntable is rotated relative to the adjustment seat in the adjustment seat, and the angle of the turntable relative to the adjustment seat is positioned by a second positioning mechanism.

[0023] Before clamping the workpiece to be processed, first adjust the angle of the adjustment seat relative to the base plate and position it through the first positioning device, then adjust the angle of the turntable relative to the second adjustment seat and position it through the second positioning device. Through two angle adjustments, complex workpiece clamping requirements can be met with higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings herein show specific examples of the technical solutions described in the present invention, and together with the specific implementation methods, constitute a part of the specification, and are used to explain the technical solutions, principles and effects of the present invention.

[0025] Unless otherwise specified or defined, the same reference numerals in different drawings represent the same or similar technical features, and the same or similar technical features may also be represented by different reference numerals.

[0026] It should be noted that: Figures 1 to 3 , Figures 15 to 17 In the figure, there is a workpiece to be processed, while in other figures, there is no workpiece to be processed.

[0027] Figure 1 is a three-dimensional diagram of the workpiece clamping device in the first embodiment of the present invention;

[0028] Figure 2 is a side view of the workpiece clamping device in the first embodiment of the present invention;

[0029] Figure 3 is a side cross-sectional view of the workpiece clamping device in the first embodiment of the present invention;

[0030] Figure 4 is an exploded view of the workpiece clamping device in the first direction in the first embodiment of the present invention;

[0031] Figure 5is an exploded view of the workpiece clamping device in the second direction in the first embodiment of the present invention;

[0032] Figure 6 This is a locking structure diagram of the first connecting seat in the first embodiment of the present invention;

[0033] Figure 7 is a structural diagram of the connecting member in the first embodiment of the present invention;

[0034] Figure 8 is a structural diagram of the locking member in the first embodiment of the present invention;

[0035] Fig. 9 This is a locking structure diagram of the second connecting base in the first embodiment of the present invention;

[0036] Fig.10 This is a locking structure diagram of the third connecting seat in the first embodiment of the present invention;

[0037] Fig.11 is a structural diagram of the third connecting socket in the first embodiment of the present invention;

[0038] Fig.12 is a structural diagram of the lifting member in the first embodiment of the present invention;

[0039] Fig.13 is a cross-sectional view of the lifting member in the first embodiment of the present invention;

[0040] Fig.14 is an exploded view of the lifting member in the first embodiment of the present invention;

[0041] Fig.15 is a structural diagram of the workpiece clamping device in the second embodiment of the present invention;

[0042] Fig.16 is a side view of the workpiece clamping device in the second embodiment of the present invention;

[0043] Fig.17 is a side cross-sectional view of the workpiece clamping device in the second embodiment of the present invention;

[0044] Fig.18 is an exploded view of the workpiece clamping device in the second embodiment of the present invention;

[0045] Fig.19 is a structural diagram of the fixed base in Embodiment 2 of the present invention;

[0046] Fig. 20 is a structural diagram of the adjustment seat in the second embodiment of the present invention;

[0047] Fig.21is a structural diagram of the distance adjustment member in the second embodiment of the present invention;

[0048] Description of reference numerals:

[0049] 11. bottom plate, 12. adjustment seat, 121. first circumferential positioning portion, 1211. first positioning edge, 1212. second positioning edge, 1213. third positioning edge, 13. turntable, 131. second circumferential positioning portion, 14. fixed base,

[0050] 21. Fixing hole, 22. Positioning sleeve,

[0051] 31. Connecting seat, 311. Articulated portion, 3111. Articulated hole, 3112. Articulated shaft, 312. Support portion, 313. Lifting portion, 3131. Side ear, 3132. Lifting hook portion, 3133. Rotating hole, 321. First seat body, 3211. First mounting hole, 3212. Second mounting hole, 33. Positioning groove,

[0052] 322, connecting piece, 3221, first locking tooth, 3222, connecting thread, 323, locking piece, 3231, second locking tooth, 3232, locking hole, 324, locking nail body,

[0053] 40. Support member, 41. Support body, 42. Tangential member,

[0054] 50. lifting member, 51. first lifting rod, 511. rod body, 512. end, 52. second lifting rod, 521. stopper, 5211. annular groove, 53. adjusting nut, 531. stopper hole, 532. outer sleeve, 533. inner sleeve, 54. through hole, 55. cross bar, 551 lifting ear, 56. rolling member,

[0055] 60. distance adjustment member, 61. adjustment base, 62. first movable block, 63. second movable block, 641. first guide rail, 642. first guide groove, 651. second guide rail, 652. second guide groove, 66. adjustment bolt, 67. matching inclined surface,

[0056] 70. Workpiece to be processed. DETAILED DESCRIPTION

[0057] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0058] Unless otherwise specified or defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. In the context of the actual scenario of the technical solution of the present invention, all technical and scientific terms used herein may also have the meaning corresponding to the purpose of implementing the technical solution of the present invention.

[0059] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0060] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0061] It should be noted that when a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there can be a central component; when an component is considered to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time; when an component is considered to be "installed on" another component, it can be directly installed on the other component or there can be a central component at the same time. When an component is considered to be "set on" another component, it can be directly set on the other component or there can be a central component at the same time.

[0062] Unless otherwise specified or defined, the “said” and “the” used in this document refer to the technical features or technical contents mentioned or described before the corresponding position, and the technical features or technical contents may be the same as or similar to the technical features or technical contents mentioned therein.

[0063] Undoubtedly, technical contents or technical features that are contrary to the purpose of the present invention or are obviously contradictory should be excluded.

[0064] The embodiments of the present invention provide two specific implementation schemes:

[0065] Embodiment 1

[0066] like Figures 1 to 14 As shown, in this embodiment, the workpiece clamping device includes a base plate 11, an adjustment seat 12 and a first positioning mechanism. In this embodiment, the base plate 11 and the adjustment seat 12 both adopt array plates (the base plate 11 and the adjustment seat 12 may also be referred to as a first array plate and a second array plate, respectively). The base plate 11 is provided with a plurality of fixing holes 21 arranged in a horizontal and vertical array. The adjustment seat 12 is also provided with a plurality of fixing holes 21 arranged in a horizontal and vertical array. The first positioning mechanism is disposed between the base plate 11 and the adjustment seat 12, and connects the base plate 11 with the adjustment seat 12.

[0067] Please focus on Figures 2 to 5As shown, three connecting seats 31 are provided on the bottom plate 11 and the adjusting seat 12, and the six connecting seats 31 are fixed to the fixing holes 21 on the bottom plate 11 and the adjusting seat 12 respectively. The first sides of the bottom plate 11 and the adjusting seat 12 are movably hinged through the hinge parts 311 of the first pair of connecting seats 31. From the first side to the second side, the bottom plate 11 and the adjusting seat 12 are supported by the supporting parts 312 of the second pair of connecting seats 31, and a supporting member 40 is provided between the two connecting seats 31. The bottom plate 11 and the adjusting seat 12 are lifted by the lifting parts 313 of the second pair of connecting seats 31, and a lifting member 50 is provided between the two connecting seats 31. In this embodiment, the first positioning mechanism is the hinge part 311, the supporting part 312, the lifting part 313, the supporting member 40, and the lifting member 50.

[0068] Specifically, the aforementioned first pair of connecting seats 31 is used to realize the articulation between the base plate 11 and the adjustment seat 12. A hinge hole 3111 is provided on the first pair of connecting seats 31. After the hinge shaft 3112 passes through the hinge hole 3111, the movable articulation between the base plate 11 and the adjustment seat 12 is realized, ensuring that the adjustment seat 12 can rotate around the hinge shaft 3112 relative to the base plate 11.

[0069] The second pair of connecting seats 31 and the third pair of connecting seats 31 are arranged in the area from the first side to the second side. They can be set to the second side position, or to the middle area between the first side and the second side, or to the middle area and the second side area respectively.

[0070] In this embodiment, the second pair of connecting seats 31 are arranged in the middle area between the first side and the second side, close to the second side, and a support member 40 is arranged between the second pair of connecting seats 31. The support member 40 may include a plurality of support bodies 41. The plurality of support bodies 41 are spliced ​​along the longitudinal direction. Each support body 41 can be processed into different specifications. When in use, the corresponding number and specifications of support bodies 41 can be selected for splicing according to the different needs of the workpiece 70 to be processed. In addition, since different processing requirements of the workpiece 70 to be processed require the selection of different support bodies 41, the angle of the adjustment seat 12 will change. In order to ensure the effective support of the support member 40 and improve the accuracy of the support height, a tangential member 42 is also provided between the support member 40 and the adjustment seat 12. The tangential member 42 is at least partially spherical or cylindrical to form a tangential portion. The upper part of the tangential member 42 is pressed against the support portion 312 of the adjustment seat 12, and the lower part is tangent to the upper end of the support member 40 through the tangential portion. Preferably, the tangential member 42 can be a spherical or cylindrical member.

[0071] In this embodiment, the third pair of connecting seats 31 is arranged at the second side position, that is, at the outer side position. After the angle of the adjusting seat 12 is adjusted by the supporting member 40, the second side of the bottom plate 11 and the adjusting seat 12 is tightened by the lifting member 50. The tightening operation needs to be performed. The third pair of connecting seats 31 is arranged at the outer side, and when the adjusting seat 12 is in a relatively open state, the operation can be performed more conveniently. The structure of the lifting member 50 is described as follows:

[0072] A side ear 3131 facing the side is provided at the outer end of the third pair of connecting seats 31. The side ears 3131 of the two connecting seats 31 are located on the same side, but the side ears 3131 are offset to one side of their respective ends, and a concave lifting hook portion 3132 is formed on the inner side of the side ear 3131.

[0073] Please focus on Figure 12 to Figure 14 As shown, the lifting member 50 includes a first lifting rod 51, a second lifting rod 52 and an adjusting nut 53. The first lifting rod 51 includes a rod body 511 and an end 512. The inner end of the first lifting rod 51 is provided with an external thread, and the inner end of the second lifting rod 52 is movably provided with the adjusting nut 53. The adjusting nut 53 is provided with an internal thread, and the internal thread of the adjusting nut 53 cooperates with the external thread of the first lifting rod 51. The lifting ears are respectively provided at the outer ends of the first lifting rod 51 and the second lifting rod 52. The outer ends of the first lifting rod 51 and the second lifting rod 52 are provided with through holes 54. After the cross bar 55 passes through the through holes 54, two lifting ears are formed at the two ends of the cross bar 55. The lifting ears of the lifting member 50 are clamped in the lifting hook portion 3132 through the side.

[0074] The inner end of the second lifting rod 52 is provided with a limiting head 521, the outer end of the adjusting nut 53 is provided with a limiting hole 531, the outer end of the second lifting rod 52 passes through the limiting hole 531, the limiting head 521 is provided with an annular groove 5211 on the outer end side, and a rolling element 56 is provided in the annular groove 5211, and the rolling element 56 cooperates with the adjusting nut 53. The adjusting nut 53 includes an outer sleeve 532, an inner sleeve 533 and a fixed shaft, the inner sleeve 533 is arranged inside the outer sleeve 532, and the inner sleeve 533 is located inside the rolling element 56 and the limiting head 521 and limits the rolling element 56 and the limiting head 521, and the fixed shaft fixes the outer sleeve 532 and the inner sleeve 533.

[0075] The above-mentioned structure can adjust the angle of the adjustment seat 12. The adjustment seat 12 can be rotated through the hinge part 311. By selecting the support body 41 of the corresponding specification, the different heights of the support member 40 can be determined. After the angle of the adjustment seat 12 is determined, the two ends of the lifting member 50 are respectively clamped on the base plate 11 and the adjustment seat 12, and the adjusting nut 53 is tightened to tighten the base plate 11 and the adjustment seat 12 to achieve the purpose of locking.

[0076] Please focus on Figures 5 to 11 As shown, the three pairs of connection seats 31 are fixedly connected by a quick locking structure, as follows:

[0077] The connecting seat 31 includes a first seat body 321, a connecting piece 322, a locking piece 323 and a locking nail body 324. One end of the connecting piece 322 is provided with a first locking tooth 3221, and the second end is provided with a connecting thread 3222 (the connecting seat 31 is connected to the base plate 11 and the adjustment seat 12 through the connecting thread 3222). The first seat body 321 is provided with a first mounting hole 3211 and a second mounting hole 3212. The first mounting hole 3211 is provided at the end of the first seat body 321, and the second mounting hole 3212 is provided at the end of the first seat body 321. The hole 3212 is formed on the side of the first seat body 321, and the first mounting hole 3211 and the second mounting hole 3212 are connected inside the first seat body 321; one end of the connecting member 322 is mounted on the first mounting hole 3211, and the locking member 323 is mounted on the second mounting hole 3212. After the locking nail body 324 passes through the locking hole 3232 and the two locking members 323 are locked, the locking member 323 matches with one end of the connecting member 322 located in the first mounting hole 3211. The second locking teeth 3231 on the locking member 323 clamp the first locking teeth 3221 on the connecting member 322 from both sides to prevent the connecting member 322 from coming out of the locking member 323. When the locking nail body 324 loosens the two locking members 323, the connecting member 322 can come out of the two locking members 323.

[0078] During installation, one end of the connecting piece 322 can be first connected to the base plate 11 and the adjusting seat 12 through a thread, and then the other end of the connecting piece 322 can be inserted into the first installation hole 3211 of the first seat body 321, and then the locking piece 323 can be inserted from the second installation hole 3212 to lock the connecting piece 322 and the first seat body 321. This structure can realize the quick connection and installation of the first seat body 321 and the base plate 11 and the adjusting seat 12, thereby improving the efficiency of assembly.

[0079] In order to improve the positioning accuracy, a positioning sleeve 22 is provided between the connecting seat and the base plate 11 and the adjusting seat 12. The two sides of one side of the positioning sleeve 22 respectively cooperate with the base plate 11 and the adjusting seat 12 to improve the positioning accuracy of the two.

[0080] It can be understood that the positioning sleeve 22 can also be used for the connection between the adjustment seat 12 and the workpiece 70 to be processed to improve the fixing accuracy of the two.

[0081] Embodiment 2

[0082] like Figures 15 to 21As shown, in this embodiment, a fixed base 14 and a turntable 13 are also included. The fixed base 14, the adjustment base 12, and the turntable 13 are all in a disc-shaped structure.

[0083] A lifting portion 313 is provided below the adjustment seat 12, and a rotation hole 3133 is provided on the lifting portion 313. The lifting ear 551 of the lifting member 50 is inserted into the rotation hole 3133 and matched with the rotation hole 3133. The connection structure between the fixed base 14 and the bottom plate 11 can refer to the connection structure between the connecting seat 31 and the bottom plate 11 and the adjustment seat 12, that is, a first mounting hole 3211 and a second mounting hole 3212 are provided on the fixed base 14, the first mounting hole 3211 is provided at the end of the fixed base 14, the second mounting hole 3212 is provided at the side of the fixed base 14, and the first mounting hole 3211 and the second mounting hole 3212 are communicated with each other inside the fixed base 14; one end of the connecting member 322 is installed in the first mounting hole 3211, the locking member 323 is installed in the second mounting hole 3212, and the locking member 323 matches with one end of the connecting member 322 located in the first mounting hole 3211. This structure can realize the quick disassembly and assembly of the connecting seat 31 and the base plate 11 and the adjusting seat 12 .

[0084] The adjusting seat 12 and the fixing base 14 are both provided with a hinge part 311 , and the adjusting seat 12 is movably hinged to the fixing base 14 via the hinge part 311 .

[0085] In this embodiment, the hinge structure, the support structure, and the lifting structure form a first positioning mechanism, and the angle of the adjustment seat 12 is adjusted by the first positioning mechanism, which will not be described in detail here. At the same time, a second positioning mechanism is provided between the turntable 13 and the adjustment seat 12. To control the rotation angle of the turntable 13 relative to the adjustment seat 12, the second positioning mechanism is described in detail below:

[0086] A first circumferential positioning portion 121 is provided on the adjustment seat 12, and the first circumferential positioning portion 121 is a positioning notch, and the positioning notch has a first positioning edge 1211, a second positioning edge 1212 and a third positioning edge 1213, and the second positioning edge 1212 is located between the first positioning edge 1211 and the third positioning edge 1213, and the first positioning edge 1211 is opposite to the third positioning edge 1213; there are at least two first circumferential positioning portions 121, and there are three first circumferential positioning portions 121 in this embodiment, and the three circumferential positioning portions are distributed around the adjustment seat 12, and a second circumferential positioning portion 131 (i.e., a positioning pin shaft) is provided on the turntable 13, and a distance adjustment member 60 is provided between the second circumferential positioning portion 131 and the first positioning edge 1211 and between the second circumferential positioning portion 131 and the third positioning edge 1213, and the second positioning mechanism includes the distance adjustment member 60. The circumferential position between the first circumferential positioning portion 121 and the second circumferential positioning portion 131 is adjusted by the distance adjusting member 60 , thereby adjusting the circumferential rotation position of the turntable 13 relative to the adjustment seat 12 .

[0087] Please focus on Fig.21 As shown, the distance adjustment member 60 includes an adjustment base 61, a first movable block 62, a second movable block 63, and an adjustment bolt 66. There are two first movable blocks 62, which are symmetrically mounted on the adjustment base 61, and a matching first guide rail 641 and a first guide groove 642 are provided between the first movable block 62 and the adjustment base 61; a matching second guide rail 651 and a second guide groove 652 are provided between the first movable block 62 and the second movable block 63, and an adjustment bolt 66 passes through the second movable block 63 and the adjustment base 61 at the same time, and the distance between the second movable block 63 and the adjustment base 61 is adjusted by the adjustment bolt 66; a matching inclined surface 67 is provided on the first movable block 62, and a matching inclined surface 67 is also provided on the second movable block 63, and the two matching inclined surfaces 67 slide and cooperate with each other. The height of the second movable block 63 can be adjusted by the adjustment bolt 66, and the distance between the two first movable blocks 62 can be adjusted under the action of the two matching inclined surfaces 67, thereby adjusting and locking the circumferential rotation position of the aforementioned turntable 13.

[0088] In this embodiment, the base plate 11 and the turntable 13 adopt array plates, that is, the base plate 11 is provided with a plurality of fixing holes 21 arranged in a horizontal and vertical array, and the turntable 13 is also provided with a plurality of fixing holes 21 arranged in a horizontal and vertical array. The adjustment seat 12 does not adopt an array plate.

[0089] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the present invention, and to fully describe the technical solution, purpose and effect of the present invention. Its purpose is to make the public understand the disclosed content of the present invention more thoroughly and comprehensively, and it does not limit the scope of protection of the present invention.

[0090] The above embodiments are not exhaustive enumerations of the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A workpiece clamping device, characterized in that: It includes a bottom plate, an adjustment seat, a turntable, a first positioning mechanism, and a second positioning mechanism. One side of the adjustment seat is hinged to the bottom plate, and the second side of the adjustment seat is positioned by the first positioning mechanism. The turntable is movably arranged on the adjustment seat and can rotate relative to the adjustment seat. The second positioning mechanism is arranged between the turntable and the adjustment seat. The workpiece clamping device also includes a fixed base, which is connected to the bottom plate, and the adjustment seat and the fixed base are both provided with a hinge part, and the adjustment seat is movably hinged to the fixed base through the hinge part; The fixed base includes a second base body, a connecting piece, a locking piece, and a locking nail body, the second base body is provided with a first mounting hole and a second mounting hole, the first mounting hole is provided at the end of the second base body, the second mounting hole is provided at the side of the second base body, and the first mounting hole and the second mounting hole are communicated with each other inside the second base body; One end of the connecting piece is installed in the first mounting hole, and the locking piece is installed in the second mounting hole. The locking piece cooperates with one end of the connecting piece located in the first mounting hole; a first locking tooth is provided at one end of the connecting piece, and the locking nail body at least partially passes through the locking hole and locks the locking piece. The locking piece has a second locking tooth that cooperates with the first locking tooth. When the locking nail body loosens the locking piece, the connecting piece falls out of the first mounting hole.

2. The workpiece clamping device according to claim 1, characterized in that: A first circumferential positioning portion is provided on the adjustment seat, and a second circumferential positioning portion is provided on the turntable. The first circumferential positioning portion corresponds to the second circumferential positioning portion, and the second positioning mechanism includes the first circumferential positioning portion and the second circumferential positioning portion.

3. The workpiece clamping device according to claim 2, characterized in that: The first circumferential positioning portion is a positioning notch, which has a first positioning edge, a second positioning edge and a third positioning edge. The second positioning edge is located between the first positioning edge and the third positioning edge, and the first positioning edge is opposite to the third positioning edge. There are at least two first circumferential positioning portions distributed around the periphery of the adjustment seat.

4. The workpiece clamping device according to claim 3, characterized in that: A distance adjusting member is provided between the second circumferential positioning portion and the first positioning edge, and between the second circumferential positioning portion and the third positioning edge, and the second positioning mechanism includes the distance adjusting member.

5. The workpiece clamping device according to claim 4, characterized in that: The distance adjustment member includes an adjustment seat, a first movable block, a second movable block, and an adjustment bolt. The first movable block is installed on the adjustment seat, and a matching first guide rail and a first guide groove are provided between the first movable block and the adjustment seat. The adjustment bolt passes through the second movable block and the adjustment seat at the same time, and the distance between the second movable block and the adjustment seat is adjusted by the adjustment bolt. The first movable block is provided with a matching inclined surface, and the second movable block is also provided with a matching inclined surface, and the two matching inclined surfaces match each other.

6. The workpiece clamping device according to claim 1, characterized in that: The bottom plate and the turntable are evenly provided with a plurality of fixing holes arranged in a horizontal and vertical array, and the fixing base is fixed at the fixing holes of the bottom plate.

7. The workpiece clamping device according to claim 1, characterized in that: A hinged portion is provided on the first side of the base plate and the adjustment seat, and the base plate and the first side of the adjustment seat are movably hinged through the hinged portion. From the first side to the second side, a supporting portion and a lifting portion are provided on the base plate and the adjustment seat, a supporting member is provided between the supporting portion of the base plate and the adjustment seat, and a lifting member is provided between the lifting portion of the base plate and the adjustment seat, and the first positioning mechanism is the hinged portion, the supporting portion, the lifting portion, the supporting member, and the lifting member.

8. The workpiece clamping device according to claim 7, characterized in that: It also includes a connecting seat, through which at least one of the hinged portion, the supporting portion or the lifting portion is connected to the base plate; and / or, at least one of the hinged portion, the supporting portion or the lifting portion is connected to the adjustment seat through the connecting seat.

9. A workpiece clamping method, wherein the workpiece clamping device according to any one of claims 1 to 8 is applied to the workpiece clamping method, characterized in that: The method comprises the following steps: The adjusting seat is rotated relative to the bottom plate through the hinged portion between the adjusting seat and the bottom plate, so that the adjusting seat is tilted to a set angle relative to the bottom plate, and the angle of the adjusting seat relative to the bottom plate is positioned by the first positioning mechanism; The turntable is rotated relative to the adjustment seat in the adjustment seat, and the angle of the turntable relative to the adjustment seat is positioned by a second positioning mechanism.

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